Home / 208,118.89-287,206.09-112,627.57

Finding the Fourth Proportional to 208,118.89, 287,206.09 and 112,627.57

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Solution

The fourth proportional to 208,118.89, 287,206.09 and 112,627.57 is: 155,427.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,118.89 : 287,206.09 = 112,627.57 : x
  2. Step 2: Convert to fraction form
    208,118.89/287,206.09 = 112,627.57/x
  3. Step 3: Cross multiply
    208,118.89x = 287,206.09 × 112,627.57
  4. Step 4: Simplify right side
    208,118.89x = 32,347,324,005.90
  5. Step 5: Solve for x
    x = 32,347,324,005.90/208,118.89
  6. Step 6: Final answer
    x = 155,427.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.